单项选择题
A.not；but B.neither；nor C.either；or D.not only；but also
The fuel pipes and ducts should be blown with （）.A.atmo...
单项选择题The fuel pipes and ducts should be blown with （）.
A.atmosphere B.the fresh water C.compressed air D.chemical compounds
The fuel oil system for a diesel engine can be consider...
单项选择题The fuel oil system for a diesel engine can be considered in two parts--the fuel supply and the （） systems.
A.fuel treatment B.fuel combustion C.fuel injection D.fuel separating
The fuel is supplied to the pump through ports or openi...
单项选择题The fuel is supplied to the pump through ports or openings in the （） or cylinder of the pump.
A.bottle B.injector C.piston D.barrel
